Hydrocarbon-lamp.



No. 654,977. Patented July 3|, I900. W. HAWKS.

HYDROCARBON LAMP.

[Application filed Apr. 1, 1899. Renewed June 25. 1900.)

(No Model.)

;,UNITED STATES PATENT mes.

WILLIAM HAWKS, OF MIDLAND, MICHIGAN, ASSIGNOR.T O THOMAS B. JEFFERY AND CHARLES F. STOKES, OF CHICAGO, ILLINOIS.

HYDROCARBON-LAMP.

SPECIFICATION forming part of Letters'Patent No. 654,977, dated'J'uly 31, 1900.

Application filed April 1, 1899. Renewed dune 25, 1900. Serial No. 21,574. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM HAWKS, a citizen of the United States, residing at Midland, in the county of Midland and State of Michigan, have invented certain new and useful Improvements in Hydrocarbon Lamps, of which the following is a specification.

The object of this invention is the production of a self-generating lamp of improved construction, one that is simple and thus may be cheaply produced, whose parts are easily accessible for cleaning, and wherein the arrangement of those parts is such that the generation of gas is rendered steady and its con1- bustion complete.

In the accompanying drawings, Figure 1 is a side elevation of this lamp, a portion of the fuel-supply pipe being broken away. Fig. 2 is a vertical central section through the lampburner on dotted lines 0300, Fig. 5. Fig. 3 is a vertical section on dotted line 3 y, Fig. 5. Fig. 4 is a section througha coupling interposed in the fuel-supply pipe; and Fig. 5 isa horizontal section on dotted line a 2, Fig. 1.

Like letters of reference indicate correspondin g parts throughout the several views. In the construction of this lamp I provide a body portion A, the upper part of which is opening A formed in the body portion A, is'

screw-threaded for the reception of a fuelsupply pipe, and a tubular stem A screwthreaded both inside and outside, is provided for the attachment of a needle-valve,both said supply-pipe and stem to be later described herein.

The hydrocarbon gas used in this lamp is generated from the liquid fuel in ducts, which extend Within the body portion A, said liquid fuel entering through the threaded opening A passing thence upward through the ducts A and A ,transversely through the duct A downward through the ducts A and A again transversely through the duct A. to

I the needle-valve. An opening A closed by said needle-valve, is situated so that the generated gas will be discharged under pressure upward into and through the tubular portions A and A of the body portion A, drawing air with it and' forming with said air a combustible gas. The generating-ducts A, A A A A and A and the dischargeopening A are drilled in the body portion A after the same is cast, and the outer open ends of said ducts are closed by screws, the removal of which screws permits ingress to said ducts for clearing them of sediment. The ducts A and A are made of smaller diameter than those which they connect, it having been found that the generation of gas is much more perfect and the, flame steadier when portions of the generating-ducts are made with reduced diameters.

A needle-valve of ordinary of construction presides over the diScharge-OpeningAi the screw-threaded valve-stem B of said needlevalve lying within the tubular stem A of the body portion A, and is provided with the usual stuffing-box B. The said stuffing-box B holds the circular generating-cup B in position on the external screw-threads of the tubular stem A A reservoir 0 is adapted to contain the liquid fuel and is connected with the opening A in the body portion A by the supply-pipe C. A portion 0 of this supply-pipe 0' adjacent to the lamp-body A is packed with some suitable filtering material 0 as asbestos, and said packing is held in position by the coupling 0 which closes the pipe 0', except for a minute opening C permitting the liquid fuel to pass into the filtering material from the reservoir 0. A screen 0 of wiregauze or other suitable material, is placed Within the coupling 0 to prevent the passage of particles into the filtering material 0 C is a hook at the upper part of said reservoir 0, its purpose being to attach the lamp to any suitable support. The mantle D and the chimney E are simi lar to the mantles and chimneys in ordinary use upon lamps of this kind.

A weight F is affixed to the liquid-fuel pipe 0 at a point suitable to balance the Weight of the lamp as the sarneis suspended by said pipe.

20 in the tubularsportions A and A of the body Y east? In operation gasolene'or other hydrocarbon is placed in the reservoir 0 and flowing down:

Ward through the pipe 0 and the filtering materialC fills the generating-ducts A, A7,

A A A and A, being'arrested by the closed needle-valve. -When it is desirable to light the lamp, a small quantity of alcohol is poured into the generating-on p B and ignited; The burning of the alcohol heats the body portion A of the lamp sufficiently to generate a quantity of gas in the generating-ducts A A A A ,:A and A filling those duets with the generated gas andjforcing the hydrocarbonback towardthe reservoir.

and the hydrocarbon gas escaping upward underpressure through the discharge-open ing A mixes with suitable proportions of air portion A and upon ignition burns within the As soon 4 as the alcohol in the generating-cup B has been consumed the needle-valve is opened.

mantle D,-h eatin g said mantle to inoande's cence. v Y

I claim as my invention-' In a hydrocarbon-lamp,in' combination, a reservoirg'a fuelipipe; a filter in said pipe; a

'eoupling Ofl for said fuel-pipe; a body por tion for the lamp, having a tubular mixingchamber with an annular flange extending from its lower end, also having an opening 30 for the fuel-pipe, the generating-duets A A "A j'A A and A, of which ductsA, and -A are of smaller diameter than those which they connect, adownwardly-extending L- shaped arm and a threaded tubular stem for the needle-valve; a needle-valve for said stem and a generating-cup. a

I WILLIAM HAWKS. Witnesses:

L. L. MILLER,

GEO. L. CHINDAHL. I 

